./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:10:22,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:10:22,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:10:22,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:10:22,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:10:22,621 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:10:22,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:10:22,622 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:10:22,624 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:10:22,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:10:22,630 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:10:22,631 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:10:22,631 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:10:22,633 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:10:22,633 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:10:22,634 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:10:22,634 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:10:22,635 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:10:22,635 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:10:22,637 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:10:22,637 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:10:22,638 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:10:22,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:10:22,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:10:22,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:10:22,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:10:22,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:10:22,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:10:22,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:10:22,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:10:22,643 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:10:22,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:10:22,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:10:22,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:10:22,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:10:22,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:10:22,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:10:22,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:10:22,645 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:10:22,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:10:22,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:10:22,646 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:10:22,646 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:10:22,647 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:10:22,648 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2023-11-25 00:10:22,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:10:22,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:10:22,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:10:22,940 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:10:22,940 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:10:22,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-25 00:10:26,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:10:27,363 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:10:27,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-25 00:10:27,436 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/data/eb98e9126/8b59432ad98d4f1db1d413a317c075c4/FLAG48faa7330 [2023-11-25 00:10:27,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/data/eb98e9126/8b59432ad98d4f1db1d413a317c075c4 [2023-11-25 00:10:27,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:10:27,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:10:27,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:10:27,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:10:27,478 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:10:27,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:10:27" (1/1) ... [2023-11-25 00:10:27,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d655f8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:27, skipping insertion in model container [2023-11-25 00:10:27,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:10:27" (1/1) ... [2023-11-25 00:10:27,690 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:10:31,484 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2023-11-25 00:10:31,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:10:31,626 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:10:31,809 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5533] [2023-11-25 00:10:31,811 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5540] [2023-11-25 00:10:31,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5547] [2023-11-25 00:10:31,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5596-5597] [2023-11-25 00:10:31,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5602-5604] [2023-11-25 00:10:31,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (809), "i" (12UL)); [5629-5630] [2023-11-25 00:10:31,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [5635-5637] [2023-11-25 00:10:31,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (814), "i" (12UL)); [5661-5662] [2023-11-25 00:10:31,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5667-5669] [2023-11-25 00:10:31,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5695] [2023-11-25 00:10:31,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr))); [5841] [2023-11-25 00:10:31,827 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr))); [5848] [2023-11-25 00:10:31,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5960-5961] [2023-11-25 00:10:31,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5994-5995] [2023-11-25 00:10:31,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/skbuff.h"), "i" (1516), "i" (12UL)); [6169-6170] [2023-11-25 00:10:31,861 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [6349-6350] [2023-11-25 00:10:31,862 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6356] [2023-11-25 00:10:31,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7633] [2023-11-25 00:10:31,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7673] [2023-11-25 00:10:31,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7726] [2023-11-25 00:10:31,954 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7778] [2023-11-25 00:10:31,955 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7802] [2023-11-25 00:10:31,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7823] [2023-11-25 00:10:31,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7911] [2023-11-25 00:10:31,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/cadence/macb.c"), "i" (808), "i" (12UL)); [7930-7931] [2023-11-25 00:10:31,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7955] [2023-11-25 00:10:31,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [7985] [2023-11-25 00:10:31,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"drivers/net/ethernet/cadence/macb.c"), "i" (863), "i" (12UL)); [8009-8010] [2023-11-25 00:10:31,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8292] [2023-11-25 00:10:32,257 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2023-11-25 00:10:32,271 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:10:32,568 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:10:32,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32 WrapperNode [2023-11-25 00:10:32,569 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:10:32,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:10:32,571 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:10:32,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:10:32,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:32,739 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,045 INFO L138 Inliner]: procedures = 426, calls = 2261, calls flagged for inlining = 259, calls inlined = 248, statements flattened = 6608 [2023-11-25 00:10:33,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:10:33,047 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:10:33,047 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:10:33,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:10:33,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,309 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,347 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:10:33,448 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:10:33,448 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:10:33,448 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:10:33,450 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (1/1) ... [2023-11-25 00:10:33,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:10:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:10:33,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:10:33,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99927511-3e1e-4e71-9a2e-fe6a73067204/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:10:33,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:10:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:10:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-25 00:10:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-25 00:10:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-25 00:10:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-25 00:10:33,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:10:33,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:10:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2023-11-25 00:10:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2023-11-25 00:10:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-11-25 00:10:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-11-25 00:10:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-25 00:10:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-25 00:10:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-25 00:10:33,525 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-25 00:10:33,525 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2023-11-25 00:10:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2023-11-25 00:10:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2023-11-25 00:10:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2023-11-25 00:10:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-25 00:10:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-25 00:10:33,526 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-25 00:10:33,526 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-25 00:10:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2023-11-25 00:10:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2023-11-25 00:10:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-25 00:10:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-25 00:10:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:10:33,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:10:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-25 00:10:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-25 00:10:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-25 00:10:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-25 00:10:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:10:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:10:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-25 00:10:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-25 00:10:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-25 00:10:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-25 00:10:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:10:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2023-11-25 00:10:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2023-11-25 00:10:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-25 00:10:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-25 00:10:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2023-11-25 00:10:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2023-11-25 00:10:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:10:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:10:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-25 00:10:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-25 00:10:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:10:33,530 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2023-11-25 00:10:33,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2023-11-25 00:10:33,531 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-25 00:10:33,619 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-25 00:10:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-25 00:10:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-25 00:10:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:10:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:10:33,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:10:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:10:33,620 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-25 00:10:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-25 00:10:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2023-11-25 00:10:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2023-11-25 00:10:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:10:33,621 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:10:33,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-25 00:10:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-25 00:10:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-25 00:10:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-25 00:10:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2023-11-25 00:10:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2023-11-25 00:10:33,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:10:33,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:10:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2023-11-25 00:10:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2023-11-25 00:10:33,623 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2023-11-25 00:10:33,623 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2023-11-25 00:10:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:10:33,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-25 00:10:33,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-25 00:10:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:10:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:10:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-25 00:10:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-25 00:10:33,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2023-11-25 00:10:33,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2023-11-25 00:10:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2023-11-25 00:10:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2023-11-25 00:10:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-11-25 00:10:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-11-25 00:10:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:10:33,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:10:33,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:10:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2023-11-25 00:10:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2023-11-25 00:10:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:10:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:10:33,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:10:33,628 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:10:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:10:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-25 00:10:33,629 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-25 00:10:33,629 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-25 00:10:33,631 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-25 00:10:33,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-25 00:10:33,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-25 00:10:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-25 00:10:33,633 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-25 00:10:33,633 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2023-11-25 00:10:33,633 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2023-11-25 00:10:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-25 00:10:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-25 00:10:33,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:10:33,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:10:33,635 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-25 00:10:33,637 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-25 00:10:33,641 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-25 00:10:33,647 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-25 00:10:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:10:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:10:33,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:10:33,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:10:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-25 00:10:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-25 00:10:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2023-11-25 00:10:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2023-11-25 00:10:33,651 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-25 00:10:33,651 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-25 00:10:33,652 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2023-11-25 00:10:33,652 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2023-11-25 00:10:33,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-25 00:10:33,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-25 00:10:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2023-11-25 00:10:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2023-11-25 00:10:33,654 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2023-11-25 00:10:33,654 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2023-11-25 00:10:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-25 00:10:33,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-25 00:10:33,655 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2023-11-25 00:10:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2023-11-25 00:10:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2023-11-25 00:10:33,656 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2023-11-25 00:10:33,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2023-11-25 00:10:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2023-11-25 00:10:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2023-11-25 00:10:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2023-11-25 00:10:33,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2023-11-25 00:10:33,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2023-11-25 00:10:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2023-11-25 00:10:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2023-11-25 00:10:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2023-11-25 00:10:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2023-11-25 00:10:33,658 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-11-25 00:10:33,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-11-25 00:10:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-25 00:10:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-25 00:10:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2023-11-25 00:10:33,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2023-11-25 00:10:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:10:33,659 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2023-11-25 00:10:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2023-11-25 00:10:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-11-25 00:10:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-11-25 00:10:33,660 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-25 00:10:33,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-25 00:10:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2023-11-25 00:10:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2023-11-25 00:10:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:10:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2023-11-25 00:10:33,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2023-11-25 00:10:33,661 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2023-11-25 00:10:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2023-11-25 00:10:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:10:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2023-11-25 00:10:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2023-11-25 00:10:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-25 00:10:33,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-25 00:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2023-11-25 00:10:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2023-11-25 00:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2023-11-25 00:10:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2023-11-25 00:10:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-25 00:10:33,663 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-25 00:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2023-11-25 00:10:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2023-11-25 00:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:10:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:10:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2023-11-25 00:10:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2023-11-25 00:10:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2023-11-25 00:10:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2023-11-25 00:10:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:10:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:10:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2023-11-25 00:10:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2023-11-25 00:10:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-25 00:10:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-25 00:10:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-25 00:10:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-25 00:10:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-25 00:10:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-25 00:10:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-25 00:10:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-25 00:10:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2023-11-25 00:10:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2023-11-25 00:10:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-25 00:10:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-25 00:10:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-25 00:10:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-25 00:10:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:10:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:10:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:10:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2023-11-25 00:10:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2023-11-25 00:10:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-25 00:10:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-25 00:10:33,669 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2023-11-25 00:10:33,669 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2023-11-25 00:10:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2023-11-25 00:10:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2023-11-25 00:10:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2023-11-25 00:10:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2023-11-25 00:10:33,670 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-25 00:10:33,670 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-25 00:10:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2023-11-25 00:10:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2023-11-25 00:10:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:10:33,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:10:33,671 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2023-11-25 00:10:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2023-11-25 00:10:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-25 00:10:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-25 00:10:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:10:33,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:10:33,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:10:33,673 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-25 00:10:33,673 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-25 00:10:34,788 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:10:34,799 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:10:34,981 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:10:43,425 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:10:43,603 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:10:46,206 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:10:46,210 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:10:46,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:10:46 BoogieIcfgContainer [2023-11-25 00:10:46,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:10:46,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:10:46,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:10:46,222 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:10:46,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:10:27" (1/3) ... [2023-11-25 00:10:46,225 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cde447b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:10:46, skipping insertion in model container [2023-11-25 00:10:46,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:10:32" (2/3) ... [2023-11-25 00:10:46,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cde447b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:10:46, skipping insertion in model container [2023-11-25 00:10:46,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:10:46" (3/3) ... [2023-11-25 00:10:46,235 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2023-11-25 00:10:46,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:10:46,259 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:10:46,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:10:46,401 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@553d4955, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:10:46,402 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:10:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 1710 states, 1045 states have (on average 1.2899521531100477) internal successors, (1348), 1060 states have internal predecessors, (1348), 553 states have call successors, (553), 112 states have call predecessors, (553), 111 states have return successors, (546), 541 states have call predecessors, (546), 546 states have call successors, (546) [2023-11-25 00:10:46,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-25 00:10:46,443 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:10:46,444 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:10:46,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:10:46,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:10:46,451 INFO L85 PathProgramCache]: Analyzing trace with hash -76342562, now seen corresponding path program 1 times [2023-11-25 00:10:46,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:10:46,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938987472] [2023-11-25 00:10:46,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:10:46,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:10:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:10:47,514 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-25 00:10:47,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:10:47,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938987472] [2023-11-25 00:10:47,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938987472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:10:47,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:10:47,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:10:47,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548108210] [2023-11-25 00:10:47,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:10:47,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:10:47,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:10:47,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:10:47,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:10:47,573 INFO L87 Difference]: Start difference. First operand has 1710 states, 1045 states have (on average 1.2899521531100477) internal successors, (1348), 1060 states have internal predecessors, (1348), 553 states have call successors, (553), 112 states have call predecessors, (553), 111 states have return successors, (546), 541 states have call predecessors, (546), 546 states have call successors, (546) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-25 00:10:49,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:10:53,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:10:55,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:10:56,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:10:56,376 INFO L93 Difference]: Finished difference Result 5027 states and 7205 transitions. [2023-11-25 00:10:56,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:10:56,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2023-11-25 00:10:56,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:10:56,438 INFO L225 Difference]: With dead ends: 5027 [2023-11-25 00:10:56,438 INFO L226 Difference]: Without dead ends: 3328 [2023-11-25 00:10:56,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:10:56,459 INFO L413 NwaCegarLoop]: 2107 mSDtfsCounter, 2367 mSDsluCounter, 2067 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 4174 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-25 00:10:56,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2367 Valid, 4174 Invalid, 705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 701 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2023-11-25 00:10:56,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2023-11-25 00:10:56,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 3328. [2023-11-25 00:10:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 2044 states have (on average 1.2871819960861057) internal successors, (2631), 2074 states have internal predecessors, (2631), 1064 states have call successors, (1064), 220 states have call predecessors, (1064), 219 states have return successors, (1061), 1051 states have call predecessors, (1061), 1061 states have call successors, (1061) [2023-11-25 00:10:56,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 4756 transitions. [2023-11-25 00:10:56,788 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 4756 transitions. Word has length 127 [2023-11-25 00:10:56,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:10:56,789 INFO L495 AbstractCegarLoop]: Abstraction has 3328 states and 4756 transitions. [2023-11-25 00:10:56,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-25 00:10:56,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 4756 transitions. [2023-11-25 00:10:56,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-25 00:10:56,806 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:10:56,806 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:10:56,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:10:56,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:10:56,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:10:56,808 INFO L85 PathProgramCache]: Analyzing trace with hash -681324333, now seen corresponding path program 1 times [2023-11-25 00:10:56,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:10:56,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421510115] [2023-11-25 00:10:56,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:10:56,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:10:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:10:57,598 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-25 00:10:57,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:10:57,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421510115] [2023-11-25 00:10:57,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421510115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:10:57,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:10:57,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:10:57,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045772066] [2023-11-25 00:10:57,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:10:57,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:10:57,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:10:57,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:10:57,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:10:57,609 INFO L87 Difference]: Start difference. First operand 3328 states and 4756 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-25 00:11:01,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:04,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:06,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:09,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-25 00:11:10,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:11:10,848 INFO L93 Difference]: Finished difference Result 3334 states and 4761 transitions. [2023-11-25 00:11:10,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:11:10,849 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 165 [2023-11-25 00:11:10,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:11:10,881 INFO L225 Difference]: With dead ends: 3334 [2023-11-25 00:11:10,881 INFO L226 Difference]: Without dead ends: 3332 [2023-11-25 00:11:10,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-25 00:11:10,885 INFO L413 NwaCegarLoop]: 2070 mSDtfsCounter, 2382 mSDsluCounter, 4134 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 6204 SdHoareTripleChecker+Invalid, 1057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-11-25 00:11:10,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2385 Valid, 6204 Invalid, 1057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1054 Invalid, 2 Unknown, 0 Unchecked, 12.9s Time] [2023-11-25 00:11:10,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3332 states. [2023-11-25 00:11:11,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3332 to 3332. [2023-11-25 00:11:11,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3332 states, 2047 states have (on average 1.2867611138251098) internal successors, (2634), 2077 states have internal predecessors, (2634), 1064 states have call successors, (1064), 221 states have call predecessors, (1064), 220 states have return successors, (1061), 1051 states have call predecessors, (1061), 1061 states have call successors, (1061) [2023-11-25 00:11:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3332 states to 3332 states and 4759 transitions. [2023-11-25 00:11:11,138 INFO L78 Accepts]: Start accepts. Automaton has 3332 states and 4759 transitions. Word has length 165 [2023-11-25 00:11:11,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:11:11,141 INFO L495 AbstractCegarLoop]: Abstraction has 3332 states and 4759 transitions. [2023-11-25 00:11:11,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-25 00:11:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3332 states and 4759 transitions. [2023-11-25 00:11:11,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-25 00:11:11,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:11:11,153 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:11:11,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:11:11,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-25 00:11:11,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:11:11,164 INFO L85 PathProgramCache]: Analyzing trace with hash -962470218, now seen corresponding path program 1 times [2023-11-25 00:11:11,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:11:11,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143508879] [2023-11-25 00:11:11,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:11:11,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:11:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:11:11,945 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2023-11-25 00:11:11,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:11:11,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143508879] [2023-11-25 00:11:11,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143508879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:11:11,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:11:11,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:11:11,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003710408] [2023-11-25 00:11:11,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:11:11,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:11:11,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:11:11,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:11:11,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:11:11,950 INFO L87 Difference]: Start difference. First operand 3332 states and 4759 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)